Additional notes on aquatic Coleoptera fauna of Turkey with a new record (Helophoridae, Hydrophilidae)Abstract : In this study, 31 aquatic beetle specimens collected from the provinces Denizli, Aydın, Isparta and Antalya in south-west Mediterranean region of Turkey, between 2000? 2002 have been established faunistically. It has been determined that they belong to 13 species of 7 genera of 2 families. 7 of these examined species are new records for south-west Mediterranean region and Helophorus (s.str.) grandis Illiger, 1798 is a new record for Turkey.